Home / 21,802.23-30,083.94-12,242.61

Finding the Fourth Proportional to 21,802.23, 30,083.94 and 12,242.61

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Solution

The fourth proportional to 21,802.23, 30,083.94 and 12,242.61 is: 16,893.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,802.23 : 30,083.94 = 12,242.61 : x
  2. Step 2: Convert to fraction form
    21,802.23/30,083.94 = 12,242.61/x
  3. Step 3: Cross multiply
    21,802.23x = 30,083.94 × 12,242.61
  4. Step 4: Simplify right side
    21,802.23x = 368,305,944.68
  5. Step 5: Solve for x
    x = 368,305,944.68/21,802.23
  6. Step 6: Final answer
    x = 16,893.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.